Journal of Communications
Ad hoc On-demand Distance Vector (AODV) routing protocol has been widely applied in Wireless Ad-hoc Sensor Networks (WASNs). Link breaks often occur in WASN due to the mobility of nodes or other reasons. Only after a link break detected, the route repair scheme in AODV will be initiated to keep the connectivity of network. In this paper, the authors propose an enhanced Preemptive Local Repairing Mechanism (PLRM) for AODV, which adopts the preemptive link break avoidance by monitoring link quality and other performance degradations.